Swimming in Portstewart in november 2025: Average sea temperature in november and tide times in november 2025
Average sea temperature in Portstewart in november 2025.
In november, according to seasonal norms, the sea temperature in Portstewart is:
Minimum: 52°F
Average: 55°F
Maximum: 56°F
Other useful seasonal weather averages in november:
- Outside temperature: 46°F to 50°F
- Most common weather: "Moderate rain at times"
- The wind blows at 3.1mph
- It rains a total of 5.2in, over 10 day(s).
Should we swim in Portstewart in november?
No... The water temperature in Portstewart in november is freezing
You won't be able to swim in Portstewart in november! The water temperature is freezing, reaching as low as 52°F (and only 56°F at best)! Our advice: if you are going to Portstewart this month, plan to sightsee and forget the beach!
Note also that in november, the climate is bad with an average outside temperature of 48°F, 5.2in of precipitation (over 10 days) and 85.86 % humidity.
Water and normal seasonal temperatures in Portstewart in november
| November | |||
| Average sea temperature | 55°F | ||
| Minimum sea temperature | 52°F | ||
| Maximum sea temperature | 56°F | ||
| Average outside temperature | 49°F | ||
| Maximum outside temperature | 50°F | ||
| Minimum outside temperature | 47°F | ||
| Wind speed | 18.6mph | ||
| Wind temperature | 41°F | ||
| Precipitation | 5.2in | ||
| Number of days of rain | 10 jour(s) (32%) | ||
| Humidity | 86% | ||
| Visibility in kilometers | 9.07km | ||
| Cloud cover | 63% | ||
| Our opinion | freezing swimming |
Chart of the tides in november 2025
Tide times in november 2025 in Portstewart
Swim elsewhere in Northern Ireland in november
| City | Average T° | Min. T° | Max. T° | Our opinion | Belfast in november | 54°F | 56°F | freezing swimming | Derry (Londonderry) in november | 54°F | 56°F | freezing swimming | Portrush in november | 55°F | 56°F | freezing swimming |
Swim in Northern Ireland in november: sea temperature by city